Former Partridge Family singer and actor David Cassidy has said he is suffering from dementia.
The revelation comes after performances in California in which he forgot his words and appeared physically unstable.
The 66-year-old star, a teen idol in the 1970s with hits like How Can I Be Sure?, has told People magazine that he will stop touring as a musician to focus on his health.
Story Source: http://www.bbc.com/news/entertainment-arts-39035720